Rans Dynamik...Seems Easy eBike Build

bobbill

100 W
Joined
Apr 9, 2018
Messages
256
Location
SE MN (Winona) USA
Rans Dynamik: has Dart II fork and Rans rack (rear) and rear k-stand, narrow tires.

Seems battery pack on rear rack and front hub motor might be easy conversion but I know squat about this stuff...am learning with another bike, however and in for a pound on that Zootr Swift so wondering if I should switch gears or sell?

Seems easy build/conversion batt-pack on rack and front hub motor.

Comments?
 
Yeah, put a picture of one so we know what you are talking about. Or a link to a page with a picture of one.
 
rans-dynamik-crank-forward-bike-01.jpg

Very expensive and not aesthetically appealing.
 
This type of bike is an interesting midway point between a semi recumbent and upright. More comfortable than a semi recumbent for sure.

The downside is that a much higher percentage of your body weight sits on the rear wheel than on an upright. Not having rear suspension on this bike is going to transmit even more rear bumps to ya.. it's nearly a unicycle. This effect will get worse the faster you go beyond bike speeds.

A front motor would be the worst way to go unless you're looking at power in the 500w or under range because the front wheel has almost no traction compared to the rear.

A battery mounted on the rear rack would compound this weight balance problem even further. You'd absolutely want the battery in the front triangle.
 
Thanks.

FWIW, have had diamond, recumbent and CF frames. Motorized all with Golden Eagle gas. No free lunch.

All different!

So, decided to go electric, with a Swift folder. Small 20” wheels, with full bike height…nifty rig no long made.

Had the Dynamik and lent it out and just got back…so decided maybe, to go e. Has large rack for bat-pack…

Recumbent bikes, motored or not are hard to move on incline. Hard to see (low) and hard to run in traffic due to visions.

The CF is easy to get going and visually safer…

NOTHING can be done to mitigate danger of going too fast on bicycle and dippos indescriminately opening car door, not checking rearview first...have to be careful, especially in agri areas...small towns. People are generally clueless.

What you say about CF rig might be so.
Rans bikes are very expenseive, but also an easy ride - or the same as a diamond (traditional) rig and almost as relaxing as recumbents…but as we noted “no free lunch.” Adding weight does alter balance but not as radically as some suggest.

And, the CF seat layout makes cushion/shock SEAT POST nimpossible...only can use forks...but I only ride on strts.

CF with feet flat on ground is nice.

If I can find link to pics of my motored machines will post, if I can. All slick and all simple...except the e-rig, which is complicated with size, need for pack and controller...but...

The CF Rans seems perfect for e conversion and simple, though spendy. Pack, controller, hub motor (I live on hill), current to charge.

Front hub would be unnoticed...but, motor or pck might affect thinkgs a bit.

Still debating a converson...then too, might be able to just use same pack on both rigs...never thought of that...

Anyway. seems few people have converted these very spendy bicycles into e-bikes...why do it, with plethora of cheap rigs and so on?

And, to all this add "individual differences"...
 
bobbill said:
And, the CF seat layout makes cushion/shock SEAT POST nimpossible...only can use forks...but I only ride on strts.

In houston that necessitates a rough terrain machine :(
 
neptronix said:
[good advice]

Agreed. Rear hub motor and battery pack as forward and low as possible.

And as large-volume street tires as will fit.
 
fatty said:
neptronix said:
[good advice]

Agreed. Rear hub motor and battery pack as forward and low as possible.

And as large-volume street tires as will fit.
Ditto and both my bikes are front wheel drives. However I do not think one will get enough traction on that front wheel without standing on the pedals or hanging the battery(s) on the front fork.
 
Agree rear load is too high and front pack and hub are tenuous, but seat stem makes comfort wanting....

Front pack and hub make life simple, till a bump happens...I just lean forward if siipping....so far!!!
 
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